This is a directive for Claude Code in PLAN MODE.
Build the complete "Sales Call Copilot" web application as described below. Decompose this into as many parallel sub-agents as possible to maximize build speed. Suggested parallel tracks: (1) Backend server + WebSocket/STT layer, (2) Frontend shell + routing, (3) UI components + design system, (4) Intelligence engine + LLM client, (5) Context manager + RAG store, (6) Client context API + storage. Run these in parallel and integrate at the end. Do not wait for one track to finish before starting another unless there is a hard dependency.